Using Passive Infrared (PIR) technology to sense human motion (3-5 meters) by receiving body's radiant heat. This wireless LED sensor light turns on or off accordingly. With its smal but powerfull LEDs, you can use this LED sensor light in cabinets, cupboards, sheds, stores, corridors, bathrooms, basements, warehouse or any room where you do not wish to switch on/off maunally or use mains electricity anywhere. All you require is 4x AAA batteries to be inserted and you are ready to use the light. The LED Sensor light comes with a self-adhesive magnetic strip so you can stick anywhere and remove the light anywhere you wish too!